My favorite words of wisdom from The Wiki Way:

Our conclusion from all this? A successful discussion server must be easy for its participants to use. All other potential powerhouse features are likely to be orders of magnitude less important, especially if they require extra software to be installed. A second critical factor must be the ability to easily refer to (link to) other "items", of whatever kind.

(from Bo Leuf & Ward Cunningham, The Wiki Way: Quick Collaboration on the Web (2001), page 11 ...)

TopicProgramming - TopicJournalizing - TopicThinking - 2005-11-17

(correlates: TheWikiWay, EmersonOnInformationRetrieval, WikiWikiWeb, ...)